Does advertising only work via driving intentions
& preference? No!
Apart from a very small amount of
direct response advertising, advertising works
(to generate sales) through memories. This
is an uncontroversial statement, yet it’s
common for marketers and academics to forget the
essential role of memory and instead think
advertising works largely through persuasive,
rational or emotional, arguments that shift brand
evaluations.
The dominant way that advertising works is by
refreshing, and occasionally building, memory
structures that improve the chance of the brand
being recalled and/or noticed in buying
situations and hence bought. Memory
structures such as what the brand does, what it
looks like, where it’s available, when
it’s consumed, where it is consumed, by
who, with whom and so on. Associations with
cues that can bring the brand to mind.
Some advertising creates a purchase intention,
gaining a reaction like “I should buy
that” or “that’s interesting, I
must check that out”. It’s
commonly assumed that such advertising must be
more sales effective, but this does not
follow. Memory structures, even if they
don’t result in intentions, still cause
sales – decades of research shows that most
sales typically come from people who had not
formed an intention (Juster, 1960). One
reason is that intentions are memories too, and
subject to faulty recall, so even firm intentions
are weakly motivational.
A similar point can be made about brand
preference or attitude. Some advertising,
much of it being quite similar or identical in
style to intention forming advertising, generates
a reaction like “that’s good”
or “that’s the brand for
me”. Again, it is commonly assumed
that such advertising must be more sales
effective. But again such attitudes are
usually weakly motivational, because they are
often not recalled in buying situations.
In fact there is typically only around a 50%
chance that a person will state an attitude about
a brand twice in two surveys (Dall’Olmo
Riley, 1997; Sharp, 2002) – sometimes they
recall their attitude, sometimes they
don’t. Either that or they are rather
unsure of their attitude (it’s not like
brand attitudes are very important). Of
course many of our intentions are rather vague
and weak, e.g. “One day I must start eating
more healthy foods and getting more
exercise”. We like a good many rival
brands, including some we haven’t heard of
yet, and we attitudinally reject very few of the
many available options.
So it is quite misplaced to conclude that
advertising that affects intentions or attitude
works better than advertising that simply
refreshes and/or builds memories. This fact
undermines much academic advertising research
that derived rules about effectiveness by
examining the effect of advertising exposure on
stated intentions. Similarly, advertising
pre-tests (copy tests) that use intentions or
intention shift are biased towards particular
types of advertising content, and very often
reach incorrect conclusions about the sales
effectiveness of particular commercials.
Many firms are still trapped in the
intentions/preference paradigm. They brief
their agencies and evaluate their advertising in
line with this mental model. As a
consequence they produce unoriginal advertising
filled with persuasive arguments (often about
trivial benefits) that are rejected or fail to
engage consumers. They often produce
advertising that fails miserably to refresh or
build appropriate mental structures –
because management attention is on the selling
message. They take their ‘eye off the
ball’ failing to consistently communicate
the distinctive aspects of the brand.
Consequently many firms produce campaign after
campaign where each looks and feels different
– as if each were for a different brand.
Somewhat ironically, firms operating to this
model of how advertising works will sometimes
produce what they call “image
advertising” or “awareness
advertising” yet they do not expect this to
produce sales. Why on earth anyone should
spend money on advertising that isn’t
expected to deliver a behavioural response is
beyond me.
In summary, advertising largely drives sales by
refreshing memory structures. Occasionally
it works to (slowly) build memory
structures. Occasionally it works by also
creating a purchase intention or preference.
So marketers need to understand the memory
structures that have already been built for their
brand. They need to use these, and ensure
their advertising refreshes these
structures. Then they need to research what
other memory structures might be useful to the
brand, and then work to build these.
Over decades leading brands have done stellar
jobs at building relevant memory
structures. Coke is a great example, this
was once a brand that sold in drug stores it was
something associated with drug store visits in
Summer by teenagers. Today Coke is
associated with a host of memories…Coke
and the beach…Coke and
nightclubs…Coke and pizza…Coke at
parties…Coke…Coke red…Coke
swirl… and so on. These memories
make it more likely that Coke will come to mind,
they make it easier to notice, and they make is
easier to process Coke advertising.
In Summary, advertising largely generates sales
by refreshing memory structures.
Occasionally it works by (usually slowly)
building memory structures. Occasionally it
works by also creating a purchase intention or
preference. The way you commision, judge
and research your advertising should reflect
this.
References:
Juster, F. Thomas (1960),
“Prediction and Consumer Buying
Intentions,” American Economic Review, 50,
604 -22.
Ehrenberg-Bass Institute report 3 “
Advertising and Brand
Attitudes“.
Ehrenberg-Bass Institute report 13
“
Brand Advertising as Creative
Publicity“.
Sharp, Anne (2002), “Searching for boundary
conditions for an empirical generalisation
concerning the temporal stability of
individual’s perceptual responses,”
Doctor of Philosophy, University of South
Australia.
To view marketing commentary from the Institute
Director, Dr Byron Sharp,
click here.
To view Ehrenberg-Bass Institute video channel,
click here.
